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BBS Route · Minnesota · BCR 11

Lake Bronson Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 114 species recorded across 10 survey years, still active.

114Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
10Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1978–2011Span
6Observers

Bird Species Found on Minnesota Lake Bronson

Top 40 of 114 species by most recent count. Each links to its species trend.

Species recorded on the Lake Bronson route.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Red-winged BlackbirdIcteridae1262011+33%1981
Wilson's SnipeScolopacidae562011+276%1982
Savannah SparrowPasserellidae452011+24%1981
Common YellowthroatParulidae442011+81%1981
Western MeadowlarkIcteridae402011-58%1981
Cliff SwallowHirundinidae332011+179%1981
American RobinTurdidae332011+46%1981
Song SparrowPasserellidae322011+44%1981
Clay-colored SparrowPasserellidae272011+64%1981
Canada GooseAnatidae26201113×1990
American CrowCorvidae252011-27%1981
Mourning DoveColumbidae222011-28%1981
Brewer's BlackbirdIcteridae202011-38%1981
Gray CatbirdMimidae192011+36%1981
Sedge WrenTroglodytidae19201111×1981
European StarlingSturnidae182011+230%1998
Common GrackleIcteridae182011-4%1990
Common RavenCorvidae182011+850%1982
Sandhill CraneGruidae162011-42%1981
Barn SwallowHirundinidae162011+123%1982
BobolinkIcteridae152011-16%1981
Swamp SparrowPasserellidae142011+62%1999
Yellow WarblerParulidae112011-21%1981
KilldeerCharadriidae102011-51%1981
Black-billed CuckooCuculidae102011-48%1981
Black-billed MagpieCorvidae102011+86%1981
Northern House WrenTroglodytidae102011-61%1990
VeeryTurdidae102011+173%1981
MallardAnatidae82011+26%1981
Ruffed GrousePhasianidae81979n/an/a
Rock PigeonColumbidae72003+482%1981
Great Crested FlycatcherTyrannidae72011+19%1981
Rose-breasted GrosbeakCardinalidae72011+140%1981
Red-eyed VireoVireonidae72011+125%1981
Warbling VireoVireonidae72011-14%1990
LeConte's SparrowPasserellidae72011+195%1982
Baltimore OrioleIcteridae62011-67%1981
Red-tailed HawkAccipitridae62011+267%1990
Marbled GodwitScolopacidae52011-23%1981
Northern HarrierAccipitridae52011+0%1990

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.